// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_RENDERER_EXTERNAL_POPUP_MENU_H_
#define CONTENT_RENDERER_EXTERNAL_POPUP_MENU_H_

#include <vector>

#include "base/macros.h"
#include "build/build_config.h"
#include "third_party/WebKit/public/web/WebExternalPopupMenu.h"
#include "third_party/WebKit/public/web/WebPopupMenuInfo.h"
#include "ui/gfx/geometry/point_f.h"

namespace blink {
class WebExternalPopupMenuClient;
}

namespace content {
class RenderFrameImpl;

class ExternalPopupMenu : public blink::WebExternalPopupMenu {
public:
    ExternalPopupMenu(RenderFrameImpl* render_frame,
        const blink::WebPopupMenuInfo& popup_menu_info,
        blink::WebExternalPopupMenuClient* popup_menu_client);

    virtual ~ExternalPopupMenu() { }

    void SetOriginScaleAndOffsetForEmulation(
        float scale, const gfx::PointF& offset);

#if defined(USE_EXTERNAL_POPUP_MENU)
#if defined(OS_MACOSX)
    // Called when the user has selected an item. |selected_item| is -1 if the
    // user canceled the popup.
    void DidSelectItem(int selected_index);
#else
    // Called when the user has selected items or canceled the popup.
    void DidSelectItems(bool canceled, const std::vector<int>& selected_indices);
#endif
#endif

    // blink::WebExternalPopupMenu implementation:
    void show(const blink::WebRect& bounds) override;
    void close() override;

private:
    RenderFrameImpl* render_frame_;
    blink::WebPopupMenuInfo popup_menu_info_;
    blink::WebExternalPopupMenuClient* popup_menu_client_;

    // Popups may be displaced when screen metrics emulation is enabled.
    // These scale and offset are used to properly adjust popup position.
    float origin_scale_for_emulation_;
    gfx::PointF origin_offset_for_emulation_;

    DISALLOW_COPY_AND_ASSIGN(ExternalPopupMenu);
};

} // namespace content

#endif // CONTENT_RENDERER_EXTERNAL_POPUP_MENU_H_
